基于java处理.docx格式的word合并

如下实例是将 2.docx和3.docx合并，写到empty.docx中，不适用于.doc格式，

public static void main(String[] args) {    File file1 = new File("D:\\empty.docx");    List<File> targetFile1 = new ArrayList<>();    targetFile1.add(new File("D:\\2.docx"));    targetFile1.add(new File("D:\\3.docx"));    appendDocx(file1, targetFile1);}

/** * 把多个docx文件合并成一个 * * @param outfile    输出文件 * @param targetFile 目标文件 */public static void appendDocx(File outfile, List<File> targetFile) {    try {        OutputStream dest = new FileOutputStream(outfile);        ArrayList<XWPFDocument> documentList = new ArrayList<>();        XWPFDocument doc = null;        for (int i = 0; i < targetFile.size(); i++) {            FileInputStream in = new FileInputStream(targetFile.get(i).getPath());            OPCPackage open = OPCPackage.open(in);            XWPFDocument document = new XWPFDocument(open);            documentList.add(document);        }        for (int i = 0; i < documentList.size(); i++) {            doc = documentList.get(0);            if (i != 0) {               /* if (i != documentList.size() - 1) {                    documentList.get(i).createParagraph().setPageBreak(true);                }*/

                appendBody(doc, documentList.get(i));            }        }        //doc.createParagraph().setPageBreak(true);        doc.write(dest);    } catch (Exception e) {        e.printStackTrace();    }}

public static void appendBody(XWPFDocument src, XWPFDocument append) throws Exception {    CTBody src1Body = src.getDocument().getBody();    CTBody src2Body = append.getDocument().getBody();

    List<XWPFPictureData> allPictures = append.getAllPictures();    // 记录图片合并前及合并后的ID    Map<String, String> map = new HashMap<>();    for (XWPFPictureData picture : allPictures) {        String before = append.getRelationId(picture);        //将原文档中的图片加入到目标文档中        String after = src.addPictureData(picture.getData(), Document.PICTURE_TYPE_PNG);        map.put(before, after);    }

    appendBody(src1Body, src2Body, map);

}

private static void appendBody(CTBody src, CTBody append, Map<String, String> map) throws Exception {    XmlOptions optionsOuter = new XmlOptions();    optionsOuter.setSaveOuter();    String appendString = append.xmlText(optionsOuter);

    String srcString = src.xmlText();    String prefix = srcString.substring(0, srcString.indexOf(">") + 1);    String mainPart = srcString.substring(srcString.indexOf(">") + 1, srcString.lastIndexOf("<"));    String sufix = srcString.substring(srcString.lastIndexOf("<"));    String addPart = appendString.substring(appendString.indexOf(">") + 1, appendString.lastIndexOf("<"));//下面这部分可以去掉，我加上的原因是合并的时候，有时候出现打不开的情况，对照document.xml将某些标签去掉就可以正常打开了    addPart = addPart.replaceAll("w14:paraId=\"[A-Za-z0-9]{1,10}\"", "");    addPart = addPart.replaceAll("w14:textId=\"[A-Za-z0-9]{1,10}\"", "");    addPart = addPart.replaceAll("w:rsidP=\"[A-Za-z0-9]{1,10}\"", "");    addPart = addPart.replaceAll("w:rsidRPr=\"[A-Za-z0-9]{1,10}\"", "");    addPart = addPart.replace("<w:headerReference r:id=\"rId8\" w:type=\"default\"/>","");    addPart = addPart.replace("<w:footerReference r:id=\"rId9\" w:type=\"default\"/>","");    addPart = addPart.replace("xsi:nil=\"true\"","");

    if (map != null && !map.isEmpty()) {        //对xml字符串中图片ID进行替换        for (Map.Entry<String, String> set : map.entrySet()) {            addPart = addPart.replace(set.getKey(), set.getValue());        }    }    //将两个文档的xml内容进行拼接    CTBody makeBody = CTBody.Factory.parse(prefix + mainPart + addPart + sufix);

    src.set(makeBody);}

原文地址：https://www.cnblogs.com/muliu/p/12166092.html